{"npi":"1063553378","type":"NPI-1","status":"active","name":{"display":"Dr. William Mosier MD","other":[],"first":"WILLIAM","last":"MOSIER","middle":"D","credential":"MD"},"specialty":{"primary_taxonomy":"207W00000X","primary_taxonomy_description":"Ophthalmology Physician","slug":"ophthalmology-physician","schema_org_specialty":null,"all":[{"code":"207W00000X","description":"Ophthalmology Physician","primary":true,"state":"CA","license":"A41428"}]},"addresses":[{"purpose":"LOCATION","street_1":"265 LAGUNA RD","city":"FULLERTON","state":"CA","postal_code":"928352515","country_code":"US","phone":"7148712570","fax":"7144412020"},{"purpose":"MAILING","street_1":"265 LAGUNA RD","city":"FULLERTON","state":"CA","postal_code":"928352515","country_code":"US","phone":"7148712570","fax":"7144412020"}],"license":{"state":"CA","number":"A41428"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"00A414280","state":"CA","issuer":null},{"type_code":"01","label":"Other","value":"P00665890","state":"CA","issuer":"RAIL ROAD MEDICARE"}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20081208000336","type_code":"14-18","type_desc":"PRACTITIONER - OPHTHALMOLOGY","state":"CA","pac_id":"9638230790"}]},"enumeration_date":"2007-02-09","last_updated":"2014-04-11","_meta":{"source":"NPPES","snapshot_date":"2014-04-11","doc_url":"https://findmynpi.com/api"}}